And now, the person doesn't know how to get out of the problem.

But how can a person know when she's going to die?

Sometimes a person may not know what a sign means.

Only a person within my company could have known about this research.

More than likely the person who did get the job, knew someone.

Again, if you want to know how a person knew something, ask.

But no one person knows enough for all the things we need.

That is to say, the young person who did so should have known better.

Let the other person know you will support his or her efforts to change.

I know you in a way no person ever knows another.